# Figure 37

 Most probable charge deposit signal normalised to that ofminimum ionising particles as a function of $\beta\gamma$ The data are from measurements performed in test beam runs, \pp collisions at \mbox{\sqrts~=~7~TeV}, and cosmic-ray runs. Uncertainties in momentum and thus $\beta\gamma$ determination are drawn as horizontal and statistical uncertainties as vertical error bars. The shown fits correspond to the Equations~\ref{equ:aleph} and~\ref{equ:logistic} described in the text.